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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / usb / host / isp1362.h
blob3b0b4847c3a95430b55ca825edf941b866095ac3
1 /*
2 * ISP1362 HCD (Host Controller Driver) for USB.
3 *
4 * COPYRIGHT (C) by L. Wassmann <LW@KARO-electronics.de>
5 */
6
7 /* ------------------------------------------------------------------------- */
8 /*
9 * Platform specific compile time options
10 */
11 #if defined(CONFIG_BLACKFIN)
12
13 #include <linux/io.h>
14 #define USE_32BIT 0
15 #define MAX_ROOT_PORTS 2
16 #define USE_PLATFORM_DELAY 0
17 #define USE_NDELAY 1
18
19 #define DUMMY_DELAY_ACCESS \
20 do { \
21 bfin_read16(ASYNC_BANK0_BASE); \
22 bfin_read16(ASYNC_BANK0_BASE); \
23 bfin_read16(ASYNC_BANK0_BASE); \
24 } while (0)
25
26 #undef insw
27 #undef outsw
28
29 #define insw delayed_insw
30 #define outsw delayed_outsw
31
32 static inline void delayed_outsw(unsigned int addr, void *buf, int len)
33 {
34 unsigned short *bp = (unsigned short *)buf;
35 while (len--) {
36 DUMMY_DELAY_ACCESS;
37 outw(*bp++, addr);
38 }
39 }
40
41 static inline void delayed_insw(unsigned int addr, void *buf, int len)
42 {
43 unsigned short *bp = (unsigned short *)buf;
44 while (len--) {
45 DUMMY_DELAY_ACCESS;
46 *bp++ = inw(addr);
47 }
48 }
49
50 #else
51
52 #define MAX_ROOT_PORTS 2
53
54 #define USE_32BIT 0
55
56 /* These options are mutually eclusive */
57 #define USE_PLATFORM_DELAY 0
58 #define USE_NDELAY 0
59
60 #define DUMMY_DELAY_ACCESS do {} while (0)
61
62 #endif
63
64
65 /* ------------------------------------------------------------------------- */
66
67 #define USB_RESET_WIDTH 50
68 #define MAX_XFER_SIZE 1023
69
70 /* Buffer sizes */
71 #define ISP1362_BUF_SIZE 4096
72 #define ISP1362_ISTL_BUFSIZE 512
73 #define ISP1362_INTL_BLKSIZE 64
74 #define ISP1362_INTL_BUFFERS 16
75 #define ISP1362_ATL_BLKSIZE 64
76
77 #define ISP1362_REG_WRITE_OFFSET 0x80
78
79 #define REG_WIDTH_16 0x000
80 #define REG_WIDTH_32 0x100
81 #define REG_WIDTH_MASK 0x100
82 #define REG_NO_MASK 0x0ff
83
84 #ifdef ISP1362_DEBUG
85 typedef const unsigned int isp1362_reg_t;
86
87 #define REG_ACCESS_R 0x200
88 #define REG_ACCESS_W 0x400
89 #define REG_ACCESS_RW 0x600
90 #define REG_ACCESS_MASK 0x600
91
92 #define ISP1362_REG_NO(r) ((r) & REG_NO_MASK)
93
94 #define ISP1362_REG(name, addr, width, rw) \
95 static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw))
96
97 #define REG_ACCESS_TEST(r) BUG_ON(((r) & ISP1362_REG_WRITE_OFFSET) && !((r) & REG_ACCESS_W))
98 #define REG_WIDTH_TEST(r, w) BUG_ON(((r) & REG_WIDTH_MASK) != (w))
99 #else
100 typedef const unsigned char isp1362_reg_t;
101 #define ISP1362_REG_NO(r) (r)
102
103 #define ISP1362_REG(name, addr, width, rw) \
104 static isp1362_reg_t ISP1362_REG_##name = addr
105
106 #define REG_ACCESS_TEST(r) do {} while (0)
107 #define REG_WIDTH_TEST(r, w) do {} while (0)
108 #endif
109
110 /* OHCI compatible registers */
111 /*
112 * Note: Some of the ISP1362 'OHCI' registers implement only
113 * a subset of the bits defined in the OHCI spec.
114 *
115 * Bitmasks for the individual bits of these registers are defined in "ohci.h"
116 */
117 ISP1362_REG(HCREVISION, 0x00, REG_WIDTH_32, REG_ACCESS_R);
118 ISP1362_REG(HCCONTROL, 0x01, REG_WIDTH_32, REG_ACCESS_RW);
119 ISP1362_REG(HCCMDSTAT, 0x02, REG_WIDTH_32, REG_ACCESS_RW);
120 ISP1362_REG(HCINTSTAT, 0x03, REG_WIDTH_32, REG_ACCESS_RW);
121 ISP1362_REG(HCINTENB, 0x04, REG_WIDTH_32, REG_ACCESS_RW);
122 ISP1362_REG(HCINTDIS, 0x05, REG_WIDTH_32, REG_ACCESS_RW);
123 ISP1362_REG(HCFMINTVL, 0x0d, REG_WIDTH_32, REG_ACCESS_RW);
124 ISP1362_REG(HCFMREM, 0x0e, REG_WIDTH_32, REG_ACCESS_RW);
125 ISP1362_REG(HCFMNUM, 0x0f, REG_WIDTH_32, REG_ACCESS_RW);
126 ISP1362_REG(HCLSTHRESH, 0x11, REG_WIDTH_32, REG_ACCESS_RW);
127 ISP1362_REG(HCRHDESCA, 0x12, REG_WIDTH_32, REG_ACCESS_RW);
128 ISP1362_REG(HCRHDESCB, 0x13, REG_WIDTH_32, REG_ACCESS_RW);
129 ISP1362_REG(HCRHSTATUS, 0x14, REG_WIDTH_32, REG_ACCESS_RW);
130 ISP1362_REG(HCRHPORT1, 0x15, REG_WIDTH_32, REG_ACCESS_RW);
131 ISP1362_REG(HCRHPORT2, 0x16, REG_WIDTH_32, REG_ACCESS_RW);
132
133 /* Philips ISP1362 specific registers */
134 ISP1362_REG(HCHWCFG, 0x20, REG_WIDTH_16, REG_ACCESS_RW);
135 #define HCHWCFG_DISABLE_SUSPEND (1 << 15)
136 #define HCHWCFG_GLOBAL_PWRDOWN (1 << 14)
137 #define HCHWCFG_PULLDOWN_DS2 (1 << 13)
138 #define HCHWCFG_PULLDOWN_DS1 (1 << 12)
139 #define HCHWCFG_CLKNOTSTOP (1 << 11)
140 #define HCHWCFG_ANALOG_OC (1 << 10)
141 #define HCHWCFG_ONEINT (1 << 9)
142 #define HCHWCFG_DACK_MODE (1 << 8)
143 #define HCHWCFG_ONEDMA (1 << 7)
144 #define HCHWCFG_DACK_POL (1 << 6)
145 #define HCHWCFG_DREQ_POL (1 << 5)
146 #define HCHWCFG_DBWIDTH_MASK (0x03 << 3)
147 #define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK)
148 #define HCHWCFG_INT_POL (1 << 2)
149 #define HCHWCFG_INT_TRIGGER (1 << 1)
150 #define HCHWCFG_INT_ENABLE (1 << 0)
151
152 ISP1362_REG(HCDMACFG, 0x21, REG_WIDTH_16, REG_ACCESS_RW);
153 #define HCDMACFG_CTR_ENABLE (1 << 7)
154 #define HCDMACFG_BURST_LEN_MASK (0x03 << 5)
155 #define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK)
156 #define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0)
157 #define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1)
158 #define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2)
159 #define HCDMACFG_DMA_ENABLE (1 << 4)
160 #define HCDMACFG_BUF_TYPE_MASK (0x07 << 1)
161 #define HCDMACFG_BUF_TYPE(n) (((n) << 1) & HCDMACFG_BUF_TYPE_MASK)
162 #define HCDMACFG_BUF_ISTL0 HCDMACFG_BUF_TYPE(0)
163 #define HCDMACFG_BUF_ISTL1 HCDMACFG_BUF_TYPE(1)
164 #define HCDMACFG_BUF_INTL HCDMACFG_BUF_TYPE(2)
165 #define HCDMACFG_BUF_ATL HCDMACFG_BUF_TYPE(3)
166 #define HCDMACFG_BUF_DIRECT HCDMACFG_BUF_TYPE(4)
167 #define HCDMACFG_DMA_RW_SELECT (1 << 0)
168
169 ISP1362_REG(HCXFERCTR, 0x22, REG_WIDTH_16, REG_ACCESS_RW);
170
171 ISP1362_REG(HCuPINT, 0x24, REG_WIDTH_16, REG_ACCESS_RW);
172 #define HCuPINT_SOF (1 << 0)
173 #define HCuPINT_ISTL0 (1 << 1)
174 #define HCuPINT_ISTL1 (1 << 2)
175 #define HCuPINT_EOT (1 << 3)
176 #define HCuPINT_OPR (1 << 4)
177 #define HCuPINT_SUSP (1 << 5)
178 #define HCuPINT_CLKRDY (1 << 6)
179 #define HCuPINT_INTL (1 << 7)
180 #define HCuPINT_ATL (1 << 8)
181 #define HCuPINT_OTG (1 << 9)
182
183 ISP1362_REG(HCuPINTENB, 0x25, REG_WIDTH_16, REG_ACCESS_RW);
184 /* same bit definitions apply as for HCuPINT */
185
186 ISP1362_REG(HCCHIPID, 0x27, REG_WIDTH_16, REG_ACCESS_R);
187 #define HCCHIPID_MASK 0xff00
188 #define HCCHIPID_MAGIC 0x3600
189
190 ISP1362_REG(HCSCRATCH, 0x28, REG_WIDTH_16, REG_ACCESS_RW);
191
192 ISP1362_REG(HCSWRES, 0x29, REG_WIDTH_16, REG_ACCESS_W);
193 #define HCSWRES_MAGIC 0x00f6
194
195 ISP1362_REG(HCBUFSTAT, 0x2c, REG_WIDTH_16, REG_ACCESS_RW);
196 #define HCBUFSTAT_ISTL0_FULL (1 << 0)
197 #define HCBUFSTAT_ISTL1_FULL (1 << 1)
198 #define HCBUFSTAT_INTL_ACTIVE (1 << 2)
199 #define HCBUFSTAT_ATL_ACTIVE (1 << 3)
200 #define HCBUFSTAT_RESET_HWPP (1 << 4)
201 #define HCBUFSTAT_ISTL0_ACTIVE (1 << 5)
202 #define HCBUFSTAT_ISTL1_ACTIVE (1 << 6)
203 #define HCBUFSTAT_ISTL0_DONE (1 << 8)
204 #define HCBUFSTAT_ISTL1_DONE (1 << 9)
205 #define HCBUFSTAT_PAIRED_PTDPP (1 << 10)
206
207 ISP1362_REG(HCDIRADDR, 0x32, REG_WIDTH_32, REG_ACCESS_RW);
208 #define HCDIRADDR_ADDR_MASK 0x0000ffff
209 #define HCDIRADDR_ADDR(n) (((n) << 0) & HCDIRADDR_ADDR_MASK)
210 #define HCDIRADDR_COUNT_MASK 0xffff0000
211 #define HCDIRADDR_COUNT(n) (((n) << 16) & HCDIRADDR_COUNT_MASK)
212 ISP1362_REG(HCDIRDATA, 0x45, REG_WIDTH_16, REG_ACCESS_RW);
213
214 ISP1362_REG(HCISTLBUFSZ, 0x30, REG_WIDTH_16, REG_ACCESS_RW);
215 ISP1362_REG(HCISTL0PORT, 0x40, REG_WIDTH_16, REG_ACCESS_RW);
216 ISP1362_REG(HCISTL1PORT, 0x42, REG_WIDTH_16, REG_ACCESS_RW);
217 ISP1362_REG(HCISTLRATE, 0x47, REG_WIDTH_16, REG_ACCESS_RW);
218
219 ISP1362_REG(HCINTLBUFSZ, 0x33, REG_WIDTH_16, REG_ACCESS_RW);
220 ISP1362_REG(HCINTLPORT, 0x43, REG_WIDTH_16, REG_ACCESS_RW);
221 ISP1362_REG(HCINTLBLKSZ, 0x53, REG_WIDTH_16, REG_ACCESS_RW);
222 ISP1362_REG(HCINTLDONE, 0x17, REG_WIDTH_32, REG_ACCESS_R);
223 ISP1362_REG(HCINTLSKIP, 0x18, REG_WIDTH_32, REG_ACCESS_RW);
224 ISP1362_REG(HCINTLLAST, 0x19, REG_WIDTH_32, REG_ACCESS_RW);
225 ISP1362_REG(HCINTLCURR, 0x1a, REG_WIDTH_16, REG_ACCESS_R);
226
227 ISP1362_REG(HCATLBUFSZ, 0x34, REG_WIDTH_16, REG_ACCESS_RW);
228 ISP1362_REG(HCATLPORT, 0x44, REG_WIDTH_16, REG_ACCESS_RW);
229 ISP1362_REG(HCATLBLKSZ, 0x54, REG_WIDTH_16, REG_ACCESS_RW);
230 ISP1362_REG(HCATLDONE, 0x1b, REG_WIDTH_32, REG_ACCESS_R);
231 ISP1362_REG(HCATLSKIP, 0x1c, REG_WIDTH_32, REG_ACCESS_RW);
232 ISP1362_REG(HCATLLAST, 0x1d, REG_WIDTH_32, REG_ACCESS_RW);
233 ISP1362_REG(HCATLCURR, 0x1e, REG_WIDTH_16, REG_ACCESS_R);
234
235 ISP1362_REG(HCATLDTC, 0x51, REG_WIDTH_16, REG_ACCESS_RW);
236 ISP1362_REG(HCATLDTCTO, 0x52, REG_WIDTH_16, REG_ACCESS_RW);
237
238
239 ISP1362_REG(OTGCONTROL, 0x62, REG_WIDTH_16, REG_ACCESS_RW);
240 ISP1362_REG(OTGSTATUS, 0x67, REG_WIDTH_16, REG_ACCESS_R);
241 ISP1362_REG(OTGINT, 0x68, REG_WIDTH_16, REG_ACCESS_RW);
242 ISP1362_REG(OTGINTENB, 0x69, REG_WIDTH_16, REG_ACCESS_RW);
243 ISP1362_REG(OTGTIMER, 0x6A, REG_WIDTH_16, REG_ACCESS_RW);
244 ISP1362_REG(OTGALTTMR, 0x6C, REG_WIDTH_16, REG_ACCESS_RW);
245
246 /* Philips transfer descriptor, cpu-endian */
247 struct ptd {
248 u16 count;
249 #define PTD_COUNT_MSK (0x3ff << 0)
250 #define PTD_TOGGLE_MSK (1 << 10)
251 #define PTD_ACTIVE_MSK (1 << 11)
252 #define PTD_CC_MSK (0xf << 12)
253 u16 mps;
254 #define PTD_MPS_MSK (0x3ff << 0)
255 #define PTD_SPD_MSK (1 << 10)
256 #define PTD_LAST_MSK (1 << 11)
257 #define PTD_EP_MSK (0xf << 12)
258 u16 len;
259 #define PTD_LEN_MSK (0x3ff << 0)
260 #define PTD_DIR_MSK (3 << 10)
261 #define PTD_DIR_SETUP (0)
262 #define PTD_DIR_OUT (1)
263 #define PTD_DIR_IN (2)
264 u16 faddr;
265 #define PTD_FA_MSK (0x7f << 0)
266 /* PTD Byte 7: [StartingFrame (if ISO PTD) | StartingFrame[0..4], PollingRate[0..2] (if INT PTD)] */
267 #define PTD_SF_ISO_MSK (0xff << 8)
268 #define PTD_SF_INT_MSK (0x1f << 8)
269 #define PTD_PR_MSK (0x07 << 13)
270 } __attribute__ ((packed, aligned(2)));
271 #define PTD_HEADER_SIZE sizeof(struct ptd)
272
273 /* ------------------------------------------------------------------------- */
274 /* Copied from ohci.h: */
275 /*
276 * Hardware transfer status codes -- CC from PTD
277 */
278 #define PTD_CC_NOERROR 0x00
279 #define PTD_CC_CRC 0x01
280 #define PTD_CC_BITSTUFFING 0x02
281 #define PTD_CC_DATATOGGLEM 0x03
282 #define PTD_CC_STALL 0x04
283 #define PTD_DEVNOTRESP 0x05
284 #define PTD_PIDCHECKFAIL 0x06
285 #define PTD_UNEXPECTEDPID 0x07
286 #define PTD_DATAOVERRUN 0x08
287 #define PTD_DATAUNDERRUN 0x09
288 /* 0x0A, 0x0B reserved for hardware */
289 #define PTD_BUFFEROVERRUN 0x0C
290 #define PTD_BUFFERUNDERRUN 0x0D
291 /* 0x0E, 0x0F reserved for HCD */
292 #define PTD_NOTACCESSED 0x0F
293
294
295 /* map OHCI TD status codes (CC) to errno values */
296 static const int cc_to_error[16] = {
297 /* No Error */ 0,
298 /* CRC Error */ -EILSEQ,
299 /* Bit Stuff */ -EPROTO,
300 /* Data Togg */ -EILSEQ,
301 /* Stall */ -EPIPE,
302 /* DevNotResp */ -ETIMEDOUT,
303 /* PIDCheck */ -EPROTO,
304 /* UnExpPID */ -EPROTO,
305 /* DataOver */ -EOVERFLOW,
306 /* DataUnder */ -EREMOTEIO,
307 /* (for hw) */ -EIO,
308 /* (for hw) */ -EIO,
309 /* BufferOver */ -ECOMM,
310 /* BuffUnder */ -ENOSR,
311 /* (for HCD) */ -EALREADY,
312 /* (for HCD) */ -EALREADY
313 };
314
315
316 /*
317 * HcControl (control) register masks
318 */
319 #define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */
320 #define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
321 #define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */
322
323 /* pre-shifted values for HCFS */
324 # define OHCI_USB_RESET (0 << 6)
325 # define OHCI_USB_RESUME (1 << 6)
326 # define OHCI_USB_OPER (2 << 6)
327 # define OHCI_USB_SUSPEND (3 << 6)
328
329 /*
330 * HcCommandStatus (cmdstatus) register masks
331 */
332 #define OHCI_HCR (1 << 0) /* host controller reset */
333 #define OHCI_SOC (3 << 16) /* scheduling overrun count */
334
335 /*
336 * masks used with interrupt registers:
337 * HcInterruptStatus (intrstatus)
338 * HcInterruptEnable (intrenable)
339 * HcInterruptDisable (intrdisable)
340 */
341 #define OHCI_INTR_SO (1 << 0) /* scheduling overrun */
342 #define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */
343 #define OHCI_INTR_SF (1 << 2) /* start frame */
344 #define OHCI_INTR_RD (1 << 3) /* resume detect */
345 #define OHCI_INTR_UE (1 << 4) /* unrecoverable error */
346 #define OHCI_INTR_FNO (1 << 5) /* frame number overflow */
347 #define OHCI_INTR_RHSC (1 << 6) /* root hub status change */
348 #define OHCI_INTR_OC (1 << 30) /* ownership change */
349 #define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */
350
351 /* roothub.portstatus [i] bits */
352 #define RH_PS_CCS 0x00000001 /* current connect status */
353 #define RH_PS_PES 0x00000002 /* port enable status*/
354 #define RH_PS_PSS 0x00000004 /* port suspend status */
355 #define RH_PS_POCI 0x00000008 /* port over current indicator */
356 #define RH_PS_PRS 0x00000010 /* port reset status */
357 #define RH_PS_PPS 0x00000100 /* port power status */
358 #define RH_PS_LSDA 0x00000200 /* low speed device attached */
359 #define RH_PS_CSC 0x00010000 /* connect status change */
360 #define RH_PS_PESC 0x00020000 /* port enable status change */
361 #define RH_PS_PSSC 0x00040000 /* port suspend status change */
362 #define RH_PS_OCIC 0x00080000 /* over current indicator change */
363 #define RH_PS_PRSC 0x00100000 /* port reset status change */
364
365 /* roothub.status bits */
366 #define RH_HS_LPS 0x00000001 /* local power status */
367 #define RH_HS_OCI 0x00000002 /* over current indicator */
368 #define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */
369 #define RH_HS_LPSC 0x00010000 /* local power status change */
370 #define RH_HS_OCIC 0x00020000 /* over current indicator change */
371 #define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */
372
373 /* roothub.b masks */
374 #define RH_B_DR 0x0000ffff /* device removable flags */
375 #define RH_B_PPCM 0xffff0000 /* port power control mask */
376
377 /* roothub.a masks */
378 #define RH_A_NDP (0xff << 0) /* number of downstream ports */
379 #define RH_A_PSM (1 << 8) /* power switching mode */
380 #define RH_A_NPS (1 << 9) /* no power switching */
381 #define RH_A_DT (1 << 10) /* device type (mbz) */
382 #define RH_A_OCPM (1 << 11) /* over current protection mode */
383 #define RH_A_NOCP (1 << 12) /* no over current protection */
384 #define RH_A_POTPGT (0xff << 24) /* power on to power good time */
385
386 #define FI 0x2edf /* 12000 bits per frame (-1) */
387 #define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7))
388 #define LSTHRESH 0x628 /* lowspeed bit threshold */
389
390 /* ------------------------------------------------------------------------- */
391
392 /* PTD accessor macros. */
393 #define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0)
394 #define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK)
395 #define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10)
396 #define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK)
397 #define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11)
398 #define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK)
399 #define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12)
400 #define PTD_CC(v) (((v) << 12) & PTD_CC_MSK)
401 #define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0)
402 #define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK)
403 #define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10)
404 #define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK)
405 #define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11)
406 #define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK)
407 #define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12)
408 #define PTD_EP(v) (((v) << 12) & PTD_EP_MSK)
409 #define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0)
410 #define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK)
411 #define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10)
412 #define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK)
413 #define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0)
414 #define PTD_FA(v) (((v) << 0) & PTD_FA_MSK)
415 #define PTD_GET_SF_INT(p) (((p)->faddr & PTD_SF_INT_MSK) >> 8)
416 #define PTD_SF_INT(v) (((v) << 8) & PTD_SF_INT_MSK)
417 #define PTD_GET_SF_ISO(p) (((p)->faddr & PTD_SF_ISO_MSK) >> 8)
418 #define PTD_SF_ISO(v) (((v) << 8) & PTD_SF_ISO_MSK)
419 #define PTD_GET_PR(p) (((p)->faddr & PTD_PR_MSK) >> 13)
420 #define PTD_PR(v) (((v) << 13) & PTD_PR_MSK)
421
422 #define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */
423 #define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE)
424
425 struct isp1362_ep {
426 struct usb_host_endpoint *hep;
427 struct usb_device *udev;
428
429 /* philips transfer descriptor */
430 struct ptd ptd;
431
432 u8 maxpacket;
433 u8 epnum;
434 u8 nextpid;
435 u16 error_count;
436 u16 length; /* of current packet */
437 s16 ptd_offset; /* buffer offset in ISP1362 where
438 PTD has been stored
439 (for access thru HCDIRDATA) */
440 int ptd_index;
441 int num_ptds;
442 void *data; /* to databuf */
443 /* queue of active EPs (the ones transmitted to the chip) */
444 struct list_head active;
445
446 /* periodic schedule */
447 u8 branch;
448 u16 interval;
449 u16 load;
450 u16 last_iso;
451
452 /* async schedule */
453 struct list_head schedule; /* list of all EPs that need processing */
454 struct list_head remove_list;
455 int num_req;
456 };
457
458 struct isp1362_ep_queue {
459 struct list_head active; /* list of PTDs currently processed by HC */
460 atomic_t finishing;
461 unsigned long buf_map;
462 unsigned long skip_map;
463 int free_ptd;
464 u16 buf_start;
465 u16 buf_size;
466 u16 blk_size; /* PTD buffer block size for ATL and INTL */
467 u8 buf_count;
468 u8 buf_avail;
469 char name[16];
470
471 /* for statistical tracking */
472 u8 stat_maxptds; /* Max # of ptds seen simultaneously in fifo */
473 u8 ptd_count; /* number of ptds submitted to this queue */
474 };
475
476 struct isp1362_hcd {
477 spinlock_t lock;
478 void __iomem *addr_reg;
479 void __iomem *data_reg;
480
481 struct isp1362_platform_data *board;
482
483 struct dentry *debug_file;
484 unsigned long stat1, stat2, stat4, stat8, stat16;
485
486 /* HC registers */
487 u32 intenb; /* "OHCI" interrupts */
488 u16 irqenb; /* uP interrupts */
489
490 /* Root hub registers */
491 u32 rhdesca;
492 u32 rhdescb;
493 u32 rhstatus;
494 u32 rhport[MAX_ROOT_PORTS];
495 unsigned long next_statechange;
496
497 /* HC control reg shadow copy */
498 u32 hc_control;
499
500 /* async schedule: control, bulk */
501 struct list_head async;
502
503 /* periodic schedule: int */
504 u16 load[PERIODIC_SIZE];
505 struct list_head periodic;
506 u16 fmindex;
507
508 /* periodic schedule: isochronous */
509 struct list_head isoc;
510 unsigned int istl_flip:1;
511 unsigned int irq_active:1;
512
513 /* Schedules for the current frame */
514 struct isp1362_ep_queue atl_queue;
515 struct isp1362_ep_queue intl_queue;
516 struct isp1362_ep_queue istl_queue[2];
517
518 /* list of PTDs retrieved from HC */
519 struct list_head remove_list;
520 enum {
521 ISP1362_INT_SOF,
522 ISP1362_INT_ISTL0,
523 ISP1362_INT_ISTL1,
524 ISP1362_INT_EOT,
525 ISP1362_INT_OPR,
526 ISP1362_INT_SUSP,
527 ISP1362_INT_CLKRDY,
528 ISP1362_INT_INTL,
529 ISP1362_INT_ATL,
530 ISP1362_INT_OTG,
531 NUM_ISP1362_IRQS
532 } IRQ_NAMES;
533 unsigned int irq_stat[NUM_ISP1362_IRQS];
534 int req_serial;
535 };
536
537 static inline const char *ISP1362_INT_NAME(int n)
538 {
539 switch (n) {
540 case ISP1362_INT_SOF: return "SOF";
541 case ISP1362_INT_ISTL0: return "ISTL0";
542 case ISP1362_INT_ISTL1: return "ISTL1";
543 case ISP1362_INT_EOT: return "EOT";
544 case ISP1362_INT_OPR: return "OPR";
545 case ISP1362_INT_SUSP: return "SUSP";
546 case ISP1362_INT_CLKRDY: return "CLKRDY";
547 case ISP1362_INT_INTL: return "INTL";
548 case ISP1362_INT_ATL: return "ATL";
549 case ISP1362_INT_OTG: return "OTG";
550 default: return "unknown";
551 }
552 }
553
554 static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr)
555 {
556 unsigned long p = (unsigned long)ptr;
557 if (!(p & 0xf))
558 isp1362_hcd->stat16++;
559 else if (!(p & 0x7))
560 isp1362_hcd->stat8++;
561 else if (!(p & 0x3))
562 isp1362_hcd->stat4++;
563 else if (!(p & 0x1))
564 isp1362_hcd->stat2++;
565 else
566 isp1362_hcd->stat1++;
567 }
568
569 static inline struct isp1362_hcd *hcd_to_isp1362_hcd(struct usb_hcd *hcd)
570 {
571 return (struct isp1362_hcd *) (hcd->hcd_priv);
572 }
573
574 static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd)
575 {
576 return container_of((void *)isp1362_hcd, struct usb_hcd, hcd_priv);
577 }
578
579 #define frame_before(f1, f2) ((s16)((u16)f1 - (u16)f2) < 0)
580
581 /*
582 * ISP1362 HW Interface
583 */
584
585 #define DBG(level, fmt...) \
586 do { \
587 if (dbg_level > level) \
588 pr_debug(fmt); \
589 } while (0)
590
591 #ifdef VERBOSE
592 # define VDBG(fmt...) DBG(3, fmt)
593 #else
594 # define VDBG(fmt...) do {} while (0)
595 #endif
596
597 #ifdef REGISTERS
598 # define RDBG(fmt...) DBG(1, fmt)
599 #else
600 # define RDBG(fmt...) do {} while (0)
601 #endif
602
603 #ifdef URB_TRACE
604 #define URB_DBG(fmt...) DBG(0, fmt)
605 #else
606 #define URB_DBG(fmt...) do {} while (0)
607 #endif
608
609
610 #if USE_PLATFORM_DELAY
611 #if USE_NDELAY
612 #error USE_PLATFORM_DELAY and USE_NDELAY defined simultaneously.
613 #endif
614 #define isp1362_delay(h, d) (h)->board->delay(isp1362_hcd_to_hcd(h)->self.controller, d)
615 #elif USE_NDELAY
616 #define isp1362_delay(h, d) ndelay(d)
617 #else
618 #define isp1362_delay(h, d) do {} while (0)
619 #endif
620
621 #define get_urb(ep) ({ \
622 BUG_ON(list_empty(&ep->hep->urb_list)); \
623 container_of(ep->hep->urb_list.next, struct urb, urb_list); \
624 })
625
626 /* basic access functions for ISP1362 chip registers */
627 /* NOTE: The contents of the address pointer register cannot be read back! The driver must ensure,
628 * that all register accesses are performed with interrupts disabled, since the interrupt
629 * handler has no way of restoring the previous state.
630 */
631 static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t reg)
632 {
633 REG_ACCESS_TEST(reg);
634 DUMMY_DELAY_ACCESS;
635 writew(ISP1362_REG_NO(reg), isp1362_hcd->addr_reg);
636 DUMMY_DELAY_ACCESS;
637 isp1362_delay(isp1362_hcd, 1);
638 }
639
640 static void isp1362_write_data16(struct isp1362_hcd *isp1362_hcd, u16 val)
641 {
642 DUMMY_DELAY_ACCESS;
643 writew(val, isp1362_hcd->data_reg);
644 }
645
646 static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd)
647 {
648 u16 val;
649
650 DUMMY_DELAY_ACCESS;
651 val = readw(isp1362_hcd->data_reg);
652
653 return val;
654 }
655
656 static void isp1362_write_data32(struct isp1362_hcd *isp1362_hcd, u32 val)
657 {
658 #if USE_32BIT
659 DUMMY_DELAY_ACCESS;
660 writel(val, isp1362_hcd->data_reg);
661 #else
662 DUMMY_DELAY_ACCESS;
663 writew((u16)val, isp1362_hcd->data_reg);
664 DUMMY_DELAY_ACCESS;
665 writew(val >> 16, isp1362_hcd->data_reg);
666 #endif
667 }
668
669 static u32 isp1362_read_data32(struct isp1362_hcd *isp1362_hcd)
670 {
671 u32 val;
672
673 #if USE_32BIT
674 DUMMY_DELAY_ACCESS;
675 val = readl(isp1362_hcd->data_reg);
676 #else
677 DUMMY_DELAY_ACCESS;
678 val = (u32)readw(isp1362_hcd->data_reg);
679 DUMMY_DELAY_ACCESS;
680 val |= (u32)readw(isp1362_hcd->data_reg) << 16;
681 #endif
682 return val;
683 }
684
685 /* use readsw/writesw to access the fifo whenever possible */
686 /* assume HCDIRDATA or XFERCTR & addr_reg have been set up */
687 static void isp1362_read_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len)
688 {
689 u8 *dp = buf;
690 u16 data;
691
692 if (!len)
693 return;
694
695 RDBG("%s: Reading %d byte from fifo to mem @ %p\n", __func__, len, buf);
696 #if USE_32BIT
697 if (len >= 4) {
698 RDBG("%s: Using readsl for %d dwords\n", __func__, len >> 2);
699 readsl(isp1362_hcd->data_reg, dp, len >> 2);
700 dp += len & ~3;
701 len &= 3;
702 }
703 #endif
704 if (len >= 2) {
705 RDBG("%s: Using readsw for %d words\n", __func__, len >> 1);
706 insw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1);
707 dp += len & ~1;
708 len &= 1;
709 }
710
711 BUG_ON(len & ~1);
712 if (len > 0) {
713 data = isp1362_read_data16(isp1362_hcd);
714 RDBG("%s: Reading trailing byte %02x to mem @ %08x\n", __func__,
715 (u8)data, (u32)dp);
716 *dp = (u8)data;
717 }
718 }
719
720 static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len)
721 {
722 u8 *dp = buf;
723 u16 data;
724
725 if (!len)
726 return;
727
728 if ((unsigned long)dp & 0x1) {
729 /* not aligned */
730 for (; len > 1; len -= 2) {
731 data = *dp++;
732 data |= *dp++ << 8;
733 isp1362_write_data16(isp1362_hcd, data);
734 }
735 if (len)
736 isp1362_write_data16(isp1362_hcd, *dp);
737 return;
738 }
739
740 RDBG("%s: Writing %d byte to fifo from memory @%p\n", __func__, len, buf);
741 #if USE_32BIT
742 if (len >= 4) {
743 RDBG("%s: Using writesl for %d dwords\n", __func__, len >> 2);
744 writesl(isp1362_hcd->data_reg, dp, len >> 2);
745 dp += len & ~3;
746 len &= 3;
747 }
748 #endif
749 if (len >= 2) {
750 RDBG("%s: Using writesw for %d words\n", __func__, len >> 1);
751 outsw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1);
752 dp += len & ~1;
753 len &= 1;
754 }
755
756 BUG_ON(len & ~1);
757 if (len > 0) {
758 /* finally write any trailing byte; we don't need to care
759 * about the high byte of the last word written
760 */
761 data = (u16)*dp;
762 RDBG("%s: Sending trailing byte %02x from mem @ %08x\n", __func__,
763 data, (u32)dp);
764 isp1362_write_data16(isp1362_hcd, data);
765 }
766 }
767
768 #define isp1362_read_reg16(d, r) ({ \
769 u16 __v; \
770 REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \
771 isp1362_write_addr(d, ISP1362_REG_##r); \
772 __v = isp1362_read_data16(d); \
773 RDBG("%s: Read %04x from %s[%02x]\n", __func__, __v, #r, \
774 ISP1362_REG_NO(ISP1362_REG_##r)); \
775 __v; \
776 })
777
778 #define isp1362_read_reg32(d, r) ({ \
779 u32 __v; \
780 REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \
781 isp1362_write_addr(d, ISP1362_REG_##r); \
782 __v = isp1362_read_data32(d); \
783 RDBG("%s: Read %08x from %s[%02x]\n", __func__, __v, #r, \
784 ISP1362_REG_NO(ISP1362_REG_##r)); \
785 __v; \
786 })
787
788 #define isp1362_write_reg16(d, r, v) { \
789 REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \
790 isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \
791 isp1362_write_data16(d, (u16)(v)); \
792 RDBG("%s: Wrote %04x to %s[%02x]\n", __func__, (u16)(v), #r, \
793 ISP1362_REG_NO(ISP1362_REG_##r)); \
794 }
795
796 #define isp1362_write_reg32(d, r, v) { \
797 REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \
798 isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \
799 isp1362_write_data32(d, (u32)(v)); \
800 RDBG("%s: Wrote %08x to %s[%02x]\n", __func__, (u32)(v), #r, \
801 ISP1362_REG_NO(ISP1362_REG_##r)); \
802 }
803
804 #define isp1362_set_mask16(d, r, m) { \
805 u16 __v; \
806 __v = isp1362_read_reg16(d, r); \
807 if ((__v | m) != __v) \
808 isp1362_write_reg16(d, r, __v | m); \
809 }
810
811 #define isp1362_clr_mask16(d, r, m) { \
812 u16 __v; \
813 __v = isp1362_read_reg16(d, r); \
814 if ((__v & ~m) != __v) \
815 isp1362_write_reg16(d, r, __v & ~m); \
816 }
817
818 #define isp1362_set_mask32(d, r, m) { \
819 u32 __v; \
820 __v = isp1362_read_reg32(d, r); \
821 if ((__v | m) != __v) \
822 isp1362_write_reg32(d, r, __v | m); \
823 }
824
825 #define isp1362_clr_mask32(d, r, m) { \
826 u32 __v; \
827 __v = isp1362_read_reg32(d, r); \
828 if ((__v & ~m) != __v) \
829 isp1362_write_reg32(d, r, __v & ~m); \
830 }
831
832 #define isp1362_show_reg(d, r) { \
833 if ((ISP1362_REG_##r & REG_WIDTH_MASK) == REG_WIDTH_32) \
834 DBG(0, "%-12s[%02x]: %08x\n", #r, \
835 ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg32(d, r)); \
836 else \
837 DBG(0, "%-12s[%02x]: %04x\n", #r, \
838 ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \
839 }
840
841 static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd)
842 {
843 isp1362_show_reg(isp1362_hcd, HCREVISION);
844 isp1362_show_reg(isp1362_hcd, HCCONTROL);
845 isp1362_show_reg(isp1362_hcd, HCCMDSTAT);
846 isp1362_show_reg(isp1362_hcd, HCINTSTAT);
847 isp1362_show_reg(isp1362_hcd, HCINTENB);
848 isp1362_show_reg(isp1362_hcd, HCFMINTVL);
849 isp1362_show_reg(isp1362_hcd, HCFMREM);
850 isp1362_show_reg(isp1362_hcd, HCFMNUM);
851 isp1362_show_reg(isp1362_hcd, HCLSTHRESH);
852 isp1362_show_reg(isp1362_hcd, HCRHDESCA);
853 isp1362_show_reg(isp1362_hcd, HCRHDESCB);
854 isp1362_show_reg(isp1362_hcd, HCRHSTATUS);
855 isp1362_show_reg(isp1362_hcd, HCRHPORT1);
856 isp1362_show_reg(isp1362_hcd, HCRHPORT2);
857
858 isp1362_show_reg(isp1362_hcd, HCHWCFG);
859 isp1362_show_reg(isp1362_hcd, HCDMACFG);
860 isp1362_show_reg(isp1362_hcd, HCXFERCTR);
861 isp1362_show_reg(isp1362_hcd, HCuPINT);
862
863 if (in_interrupt())
864 DBG(0, "%-12s[%02x]: %04x\n", "HCuPINTENB",
865 ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), isp1362_hcd->irqenb);
866 else
867 isp1362_show_reg(isp1362_hcd, HCuPINTENB);
868 isp1362_show_reg(isp1362_hcd, HCCHIPID);
869 isp1362_show_reg(isp1362_hcd, HCSCRATCH);
870 isp1362_show_reg(isp1362_hcd, HCBUFSTAT);
871 isp1362_show_reg(isp1362_hcd, HCDIRADDR);
872 /* Access would advance fifo
873 * isp1362_show_reg(isp1362_hcd, HCDIRDATA);
874 */
875 isp1362_show_reg(isp1362_hcd, HCISTLBUFSZ);
876 isp1362_show_reg(isp1362_hcd, HCISTLRATE);
877 isp1362_show_reg(isp1362_hcd, HCINTLBUFSZ);
878 isp1362_show_reg(isp1362_hcd, HCINTLBLKSZ);
879 isp1362_show_reg(isp1362_hcd, HCINTLDONE);
880 isp1362_show_reg(isp1362_hcd, HCINTLSKIP);
881 isp1362_show_reg(isp1362_hcd, HCINTLLAST);
882 isp1362_show_reg(isp1362_hcd, HCINTLCURR);
883 isp1362_show_reg(isp1362_hcd, HCATLBUFSZ);
884 isp1362_show_reg(isp1362_hcd, HCATLBLKSZ);
885 /* only valid after ATL_DONE interrupt
886 * isp1362_show_reg(isp1362_hcd, HCATLDONE);
887 */
888 isp1362_show_reg(isp1362_hcd, HCATLSKIP);
889 isp1362_show_reg(isp1362_hcd, HCATLLAST);
890 isp1362_show_reg(isp1362_hcd, HCATLCURR);
891 isp1362_show_reg(isp1362_hcd, HCATLDTC);
892 isp1362_show_reg(isp1362_hcd, HCATLDTCTO);
893 }
894
895 static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len)
896 {
897 len = (len + 1) & ~1;
898
899 isp1362_clr_mask16(isp1362_hcd, HCDMACFG, HCDMACFG_CTR_ENABLE);
900 isp1362_write_reg32(isp1362_hcd, HCDIRADDR,
901 HCDIRADDR_ADDR(offset) | HCDIRADDR_COUNT(len));
902 }
903
904 static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len)
905 {
906 isp1362_write_diraddr(isp1362_hcd, offset, len);
907
908 DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n",
909 __func__, len, offset, buf);
910
911 isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
912
913 isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA);
914
915 isp1362_read_fifo(isp1362_hcd, buf, len);
916 isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
917 }
918
919 static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len)
920 {
921 isp1362_write_diraddr(isp1362_hcd, offset, len);
922
923 DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n",
924 __func__, len, offset, buf);
925
926 isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
927
928 isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA | ISP1362_REG_WRITE_OFFSET);
929 isp1362_write_fifo(isp1362_hcd, buf, len);
930
931 isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
932 }
933
934 static void __attribute__((unused)) dump_data(char *buf, int len)
935 {
936 if (dbg_level > 0) {
937 int k;
938 int lf = 0;
939
940 for (k = 0; k < len; ++k) {
941 if (!lf)
942 DBG(0, "%04x:", k);
943 printk(" %02x", ((u8 *) buf)[k]);
944 lf = 1;
945 if (!k)
946 continue;
947 if (k % 16 == 15) {
948 printk("\n");
949 lf = 0;
950 continue;
951 }
952 if (k % 8 == 7)
953 printk(" ");
954 if (k % 4 == 3)
955 printk(" ");
956 }
957 if (lf)
958 printk("\n");
959 }
960 }
961
962 #if defined(PTD_TRACE)
963
964 static void dump_ptd(struct ptd *ptd)
965 {
966 DBG(0, "EP %p: CC=%x EP=%d DIR=%x CNT=%d LEN=%d MPS=%d TGL=%x ACT=%x FA=%d SPD=%x SF=%x PR=%x LST=%x\n",
967 container_of(ptd, struct isp1362_ep, ptd),
968 PTD_GET_CC(ptd), PTD_GET_EP(ptd), PTD_GET_DIR(ptd),
969 PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
970 PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd), PTD_GET_FA(ptd),
971 PTD_GET_SPD(ptd), PTD_GET_SF_INT(ptd), PTD_GET_PR(ptd), PTD_GET_LAST(ptd));
972 DBG(0, " %04x %04x %04x %04x\n", ptd->count, ptd->mps, ptd->len, ptd->faddr);
973 }
974
975 static void dump_ptd_out_data(struct ptd *ptd, u8 *buf)
976 {
977 if (dbg_level > 0) {
978 if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) {
979 DBG(0, "--out->\n");
980 dump_data(buf, PTD_GET_LEN(ptd));
981 }
982 }
983 }
984
985 static void dump_ptd_in_data(struct ptd *ptd, u8 *buf)
986 {
987 if (dbg_level > 0) {
988 if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) {
989 DBG(0, "<--in--\n");
990 dump_data(buf, PTD_GET_COUNT(ptd));
991 }
992 DBG(0, "-----\n");
993 }
994 }
995
996 static void dump_ptd_queue(struct isp1362_ep_queue *epq)
997 {
998 struct isp1362_ep *ep;
999 int dbg = dbg_level;
1000
1001 dbg_level = 1;
1002 list_for_each_entry(ep, &epq->active, active) {
1003 dump_ptd(&ep->ptd);
1004 dump_data(ep->data, ep->length);
1005 }
1006 dbg_level = dbg;
1007 }
1008 #else
1009 #define dump_ptd(ptd) do {} while (0)
1010 #define dump_ptd_in_data(ptd, buf) do {} while (0)
1011 #define dump_ptd_out_data(ptd, buf) do {} while (0)
1012 #define dump_ptd_data(ptd, buf) do {} while (0)
1013 #define dump_ptd_queue(epq) do {} while (0)
1014 #endif
Linux with added FPC-III support